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Finding the Fourth Proportional to 85,666.94, 128,484.93 and 23,322.86

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Solution

The fourth proportional to 85,666.94, 128,484.93 and 23,322.86 is: 34,980.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,666.94 : 128,484.93 = 23,322.86 : x
  2. Step 2: Convert to fraction form
    85,666.94/128,484.93 = 23,322.86/x
  3. Step 3: Cross multiply
    85,666.94x = 128,484.93 × 23,322.86
  4. Step 4: Simplify right side
    85,666.94x = 2,996,636,034.50
  5. Step 5: Solve for x
    x = 2,996,636,034.50/85,666.94
  6. Step 6: Final answer
    x = 34,980.08

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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.