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Finding the Fourth Proportional to 8,970.55, 12,386.62 and 8,024.67

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Solution

The fourth proportional to 8,970.55, 12,386.62 and 8,024.67 is: 11,080.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.55 : 12,386.62 = 8,024.67 : x
  2. Step 2: Convert to fraction form
    8,970.55/12,386.62 = 8,024.67/x
  3. Step 3: Cross multiply
    8,970.55x = 12,386.62 × 8,024.67
  4. Step 4: Simplify right side
    8,970.55x = 99,398,547.95
  5. Step 5: Solve for x
    x = 99,398,547.95/8,970.55
  6. Step 6: Final answer
    x = 11,080.54

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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.