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Finding the Fourth Proportional to 64,304.91, 88,545.22 and 57,030.30

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Solution

The fourth proportional to 64,304.91, 88,545.22 and 57,030.30 is: 78,528.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,304.91 : 88,545.22 = 57,030.30 : x
  2. Step 2: Convert to fraction form
    64,304.91/88,545.22 = 57,030.30/x
  3. Step 3: Cross multiply
    64,304.91x = 88,545.22 × 57,030.30
  4. Step 4: Simplify right side
    64,304.91x = 5,049,760,317.59
  5. Step 5: Solve for x
    x = 5,049,760,317.59/64,304.91
  6. Step 6: Final answer
    x = 78,528.38

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1.5x scale

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.