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Finding the Fourth Proportional to 47,870.80, 66,061.71 and 26,655.08

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Solution

The fourth proportional to 47,870.80, 66,061.71 and 26,655.08 is: 36,784.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,870.80 : 66,061.71 = 26,655.08 : x
  2. Step 2: Convert to fraction form
    47,870.80/66,061.71 = 26,655.08/x
  3. Step 3: Cross multiply
    47,870.80x = 66,061.71 × 26,655.08
  4. Step 4: Simplify right side
    47,870.80x = 1,760,879,834.68
  5. Step 5: Solve for x
    x = 1,760,879,834.68/47,870.80
  6. Step 6: Final answer
    x = 36,784.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.