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Finding the Fourth Proportional to 56,870.66, 78,465.75 and 36,728.39

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Solution

The fourth proportional to 56,870.66, 78,465.75 and 36,728.39 is: 50,675.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,870.66 : 78,465.75 = 36,728.39 : x
  2. Step 2: Convert to fraction form
    56,870.66/78,465.75 = 36,728.39/x
  3. Step 3: Cross multiply
    56,870.66x = 78,465.75 × 36,728.39
  4. Step 4: Simplify right side
    56,870.66x = 2,881,920,275.31
  5. Step 5: Solve for x
    x = 2,881,920,275.31/56,870.66
  6. Step 6: Final answer
    x = 50,675.00

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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.