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Finding the Fourth Proportional to 70,646.66, 105,970.04 and 18,056.19

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Solution

The fourth proportional to 70,646.66, 105,970.04 and 18,056.19 is: 27,084.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,646.66 : 105,970.04 = 18,056.19 : x
  2. Step 2: Convert to fraction form
    70,646.66/105,970.04 = 18,056.19/x
  3. Step 3: Cross multiply
    70,646.66x = 105,970.04 × 18,056.19
  4. Step 4: Simplify right side
    70,646.66x = 1,913,415,176.55
  5. Step 5: Solve for x
    x = 1,913,415,176.55/70,646.66
  6. Step 6: Final answer
    x = 27,084.30

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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.