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Finding the Fourth Proportional to 70,088.94, 105,070.89 and 25,705.32

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Solution

The fourth proportional to 70,088.94, 105,070.89 and 25,705.32 is: 38,535.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,088.94 : 105,070.89 = 25,705.32 : x
  2. Step 2: Convert to fraction form
    70,088.94/105,070.89 = 25,705.32/x
  3. Step 3: Cross multiply
    70,088.94x = 105,070.89 × 25,705.32
  4. Step 4: Simplify right side
    70,088.94x = 2,700,880,850.13
  5. Step 5: Solve for x
    x = 2,700,880,850.13/70,088.94
  6. Step 6: Final answer
    x = 38,535.05

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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.