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Finding the Fourth Proportional to 9,422,420.40, 13,221,248.40 and 9,422,420.40

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Solution

The fourth proportional to 9,422,420.40, 13,221,248.40 and 9,422,420.40 is: 13,221,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,422,420.40 : 13,221,248.40 = 9,422,420.40 : x
  2. Step 2: Convert to fraction form
    9,422,420.40/13,221,248.40 = 9,422,420.40/x
  3. Step 3: Cross multiply
    9,422,420.40x = 13,221,248.40 × 9,422,420.40
  4. Step 4: Simplify right side
    9,422,420.40x = 124,576,160,637,627.38
  5. Step 5: Solve for x
    x = 124,576,160,637,627.38/9,422,420.40
  6. Step 6: Final answer
    x = 13,221,248.40

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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.