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Finding the Fourth Proportional to 39,369.86, 59,055.01 and 9,787.70

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Solution

The fourth proportional to 39,369.86, 59,055.01 and 9,787.70 is: 14,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,369.86 : 59,055.01 = 9,787.70 : x
  2. Step 2: Convert to fraction form
    39,369.86/59,055.01 = 9,787.70/x
  3. Step 3: Cross multiply
    39,369.86x = 59,055.01 × 9,787.70
  4. Step 4: Simplify right side
    39,369.86x = 578,012,601.37
  5. Step 5: Solve for x
    x = 578,012,601.37/39,369.86
  6. Step 6: Final answer
    x = 14,681.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.