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Finding the Fourth Proportional to 18,723,588.40, 26,248,413.20 and 18,723,588.40

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Solution

The fourth proportional to 18,723,588.40, 26,248,413.20 and 18,723,588.40 is: 26,248,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,588.40 : 26,248,413.20 = 18,723,588.40 : x
  2. Step 2: Convert to fraction form
    18,723,588.40/26,248,413.20 = 18,723,588.40/x
  3. Step 3: Cross multiply
    18,723,588.40x = 26,248,413.20 × 18,723,588.40
  4. Step 4: Simplify right side
    18,723,588.40x = 491,464,484,909,926.81
  5. Step 5: Solve for x
    x = 491,464,484,909,926.81/18,723,588.40
  6. Step 6: Final answer
    x = 26,248,413.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.